* [PATCH v1 2/2] Bluetooth: ISO: Fix not using bc_sid as advertisement SID
2025-06-10 18:03 [PATCH v1 1/2] Bluetooth: ISO: Fix using BT_SK_PA_SYNC to detect BIS sockets Luiz Augusto von Dentz
@ 2025-06-10 18:03 ` Luiz Augusto von Dentz
2025-06-10 18:40 ` [v1,1/2] Bluetooth: ISO: Fix using BT_SK_PA_SYNC to detect BIS sockets bluez.test.bot
2025-06-10 19:20 ` [PATCH v1 1/2] " patchwork-bot+bluetooth
2 siblings, 0 replies; 4+ messages in thread
From: Luiz Augusto von Dentz @ 2025-06-10 18:03 UTC (permalink / raw)
To: linux-bluetooth
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Currently bc_sid is being ignore when acting as Broadcast Source role,
so this fix it by passing the bc_sid and then use it when programming
the PA:
< HCI Command: LE Set Exte.. (0x08|0x0036) plen 25
Handle: 0x01
Properties: 0x0000
Min advertising interval: 140.000 msec (0x00e0)
Max advertising interval: 140.000 msec (0x00e0)
Channel map: 37, 38, 39 (0x07)
Own address type: Random (0x01)
Peer address type: Public (0x00)
Peer address: 00:00:00:00:00:00 (OUI 00-00-00)
Filter policy: Allow Scan Request from Any, Allow Connect Request from Any (0x00)
TX power: Host has no preference (0x7f)
Primary PHY: LE 1M (0x01)
Secondary max skip: 0x00
Secondary PHY: LE 2M (0x02)
SID: 0x01
Scan request notifications: Disabled (0x00)
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
---
include/net/bluetooth/hci_core.h | 9 ++++++---
include/net/bluetooth/hci_sync.h | 4 ++--
net/bluetooth/hci_conn.c | 31 ++++++++++++++++++++++++-------
net/bluetooth/hci_core.c | 16 +++++++++++++++-
net/bluetooth/hci_sync.c | 20 +++++++++++++++++---
net/bluetooth/iso.c | 12 ++++++++----
6 files changed, 72 insertions(+), 20 deletions(-)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index f7b1a9eb9543..a760f05fa3fb 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -242,6 +242,7 @@ struct adv_info {
__u8 mesh;
__u8 instance;
__u8 handle;
+ __u8 sid;
__u32 flags;
__u16 timeout;
__u16 remaining_time;
@@ -1551,13 +1552,14 @@ struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
u16 timeout);
struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
__u8 dst_type, struct bt_iso_qos *qos);
-struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst,
+struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst, __u8 sid,
struct bt_iso_qos *qos,
__u8 base_len, __u8 *base);
struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
__u8 dst_type, struct bt_iso_qos *qos);
struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
- __u8 dst_type, struct bt_iso_qos *qos,
+ __u8 dst_type, __u8 sid,
+ struct bt_iso_qos *qos,
__u8 data_len, __u8 *data);
struct hci_conn *hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst,
__u8 dst_type, __u8 sid, struct bt_iso_qos *qos);
@@ -1832,6 +1834,7 @@ int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
void hci_adv_instances_clear(struct hci_dev *hdev);
struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
+struct adv_info *hci_find_adv_sid(struct hci_dev *hdev, u8 sid);
struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
u32 flags, u16 adv_data_len, u8 *adv_data,
@@ -1839,7 +1842,7 @@ struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
u16 timeout, u16 duration, s8 tx_power,
u32 min_interval, u32 max_interval,
u8 mesh_handle);
-struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance,
+struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance, u8 sid,
u32 flags, u8 data_len, u8 *data,
u32 min_interval, u32 max_interval);
int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
diff --git a/include/net/bluetooth/hci_sync.h b/include/net/bluetooth/hci_sync.h
index 72558c826aa1..5224f57f6af2 100644
--- a/include/net/bluetooth/hci_sync.h
+++ b/include/net/bluetooth/hci_sync.h
@@ -115,8 +115,8 @@ int hci_enable_ext_advertising_sync(struct hci_dev *hdev, u8 instance);
int hci_enable_advertising_sync(struct hci_dev *hdev);
int hci_enable_advertising(struct hci_dev *hdev);
-int hci_start_per_adv_sync(struct hci_dev *hdev, u8 instance, u8 data_len,
- u8 *data, u32 flags, u16 min_interval,
+int hci_start_per_adv_sync(struct hci_dev *hdev, u8 instance, u8 sid,
+ u8 data_len, u8 *data, u32 flags, u16 min_interval,
u16 max_interval, u16 sync_interval);
int hci_disable_per_advertising_sync(struct hci_dev *hdev, u8 instance);
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 99efeed6a766..4f379184df5b 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -1501,8 +1501,8 @@ static int qos_set_bis(struct hci_dev *hdev, struct bt_iso_qos *qos)
/* This function requires the caller holds hdev->lock */
static struct hci_conn *hci_add_bis(struct hci_dev *hdev, bdaddr_t *dst,
- struct bt_iso_qos *qos, __u8 base_len,
- __u8 *base)
+ __u8 sid, struct bt_iso_qos *qos,
+ __u8 base_len, __u8 *base)
{
struct hci_conn *conn;
int err;
@@ -1543,6 +1543,7 @@ static struct hci_conn *hci_add_bis(struct hci_dev *hdev, bdaddr_t *dst,
return conn;
conn->state = BT_CONNECT;
+ conn->sid = sid;
hci_conn_hold(conn);
return conn;
@@ -2062,7 +2063,8 @@ static int create_big_sync(struct hci_dev *hdev, void *data)
if (qos->bcast.bis)
sync_interval = interval * 4;
- err = hci_start_per_adv_sync(hdev, qos->bcast.bis, conn->le_per_adv_data_len,
+ err = hci_start_per_adv_sync(hdev, qos->bcast.bis, conn->sid,
+ conn->le_per_adv_data_len,
conn->le_per_adv_data, flags, interval,
interval, sync_interval);
if (err)
@@ -2134,7 +2136,7 @@ static void create_big_complete(struct hci_dev *hdev, void *data, int err)
}
}
-struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst,
+struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst, __u8 sid,
struct bt_iso_qos *qos,
__u8 base_len, __u8 *base)
{
@@ -2156,7 +2158,7 @@ struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst,
base, base_len);
/* We need hci_conn object using the BDADDR_ANY as dst */
- conn = hci_add_bis(hdev, dst, qos, base_len, eir);
+ conn = hci_add_bis(hdev, dst, sid, qos, base_len, eir);
if (IS_ERR(conn))
return conn;
@@ -2207,20 +2209,35 @@ static void bis_mark_per_adv(struct hci_conn *conn, void *data)
}
struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
- __u8 dst_type, struct bt_iso_qos *qos,
+ __u8 dst_type, __u8 sid,
+ struct bt_iso_qos *qos,
__u8 base_len, __u8 *base)
{
struct hci_conn *conn;
int err;
struct iso_list_data data;
- conn = hci_bind_bis(hdev, dst, qos, base_len, base);
+ conn = hci_bind_bis(hdev, dst, sid, qos, base_len, base);
if (IS_ERR(conn))
return conn;
if (conn->state == BT_CONNECTED)
return conn;
+ /* Check if SID needs to be allocated then search for the first
+ * available.
+ */
+ if (conn->sid == HCI_SID_INVALID) {
+ u8 sid;
+
+ for (sid = 0; sid <= 0x0f; sid++) {
+ if (!hci_find_adv_sid(hdev, sid)) {
+ conn->sid = sid;
+ break;
+ }
+ }
+ }
+
data.big = qos->bcast.big;
data.bis = qos->bcast.bis;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 487c045a7ba8..07a8b4281a39 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1584,6 +1584,19 @@ struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance)
return NULL;
}
+/* This function requires the caller holds hdev->lock */
+struct adv_info *hci_find_adv_sid(struct hci_dev *hdev, u8 sid)
+{
+ struct adv_info *adv;
+
+ list_for_each_entry(adv, &hdev->adv_instances, list) {
+ if (adv->sid == sid)
+ return adv;
+ }
+
+ return NULL;
+}
+
/* This function requires the caller holds hdev->lock */
struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance)
{
@@ -1736,7 +1749,7 @@ struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
}
/* This function requires the caller holds hdev->lock */
-struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance,
+struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance, u8 sid,
u32 flags, u8 data_len, u8 *data,
u32 min_interval, u32 max_interval)
{
@@ -1748,6 +1761,7 @@ struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance,
if (IS_ERR(adv))
return adv;
+ adv->sid = sid;
adv->periodic = true;
adv->per_adv_data_len = data_len;
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index 83de3847c8ea..6687f2a4d1eb 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -1261,10 +1261,12 @@ int hci_setup_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance)
hci_cpu_to_le24(adv->min_interval, cp.min_interval);
hci_cpu_to_le24(adv->max_interval, cp.max_interval);
cp.tx_power = adv->tx_power;
+ cp.sid = adv->sid;
} else {
hci_cpu_to_le24(hdev->le_adv_min_interval, cp.min_interval);
hci_cpu_to_le24(hdev->le_adv_max_interval, cp.max_interval);
cp.tx_power = HCI_ADV_TX_POWER_NO_PREFERENCE;
+ cp.sid = 0x00;
}
secondary_adv = (flags & MGMT_ADV_FLAG_SEC_MASK);
@@ -1594,8 +1596,8 @@ static int hci_adv_bcast_annoucement(struct hci_dev *hdev, struct adv_info *adv)
return hci_update_adv_data_sync(hdev, adv->instance);
}
-int hci_start_per_adv_sync(struct hci_dev *hdev, u8 instance, u8 data_len,
- u8 *data, u32 flags, u16 min_interval,
+int hci_start_per_adv_sync(struct hci_dev *hdev, u8 instance, u8 sid,
+ u8 data_len, u8 *data, u32 flags, u16 min_interval,
u16 max_interval, u16 sync_interval)
{
struct adv_info *adv = NULL;
@@ -1607,6 +1609,18 @@ int hci_start_per_adv_sync(struct hci_dev *hdev, u8 instance, u8 data_len,
if (instance) {
adv = hci_find_adv_instance(hdev, instance);
if (adv) {
+ if (sid != HCI_SID_INVALID && adv->sid != sid) {
+ /* If the SID don't match attempt to find by
+ * SID.
+ */
+ adv = hci_find_adv_sid(hdev, sid);
+ if (!adv) {
+ bt_dev_err(hdev,
+ "Unable to find adv_info");
+ return -EINVAL;
+ }
+ }
+
/* Turn it into periodic advertising */
adv->periodic = true;
adv->per_adv_data_len = data_len;
@@ -1615,7 +1629,7 @@ int hci_start_per_adv_sync(struct hci_dev *hdev, u8 instance, u8 data_len,
adv->flags = flags;
} else if (!adv) {
/* Create an instance if that could not be found */
- adv = hci_add_per_instance(hdev, instance, flags,
+ adv = hci_add_per_instance(hdev, instance, sid, flags,
data_len, data,
sync_interval,
sync_interval);
diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c
index affa2077e3a2..3c2c98eecc62 100644
--- a/net/bluetooth/iso.c
+++ b/net/bluetooth/iso.c
@@ -336,7 +336,7 @@ static int iso_connect_bis(struct sock *sk)
struct hci_dev *hdev;
int err;
- BT_DBG("%pMR", &iso_pi(sk)->src);
+ BT_DBG("%pMR (SID 0x%2.2x)", &iso_pi(sk)->src, iso_pi(sk)->bc_sid);
hdev = hci_get_route(&iso_pi(sk)->dst, &iso_pi(sk)->src,
iso_pi(sk)->src_type);
@@ -365,7 +365,7 @@ static int iso_connect_bis(struct sock *sk)
/* Just bind if DEFER_SETUP has been set */
if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) {
- hcon = hci_bind_bis(hdev, &iso_pi(sk)->dst,
+ hcon = hci_bind_bis(hdev, &iso_pi(sk)->dst, iso_pi(sk)->bc_sid,
&iso_pi(sk)->qos, iso_pi(sk)->base_len,
iso_pi(sk)->base);
if (IS_ERR(hcon)) {
@@ -375,12 +375,16 @@ static int iso_connect_bis(struct sock *sk)
} else {
hcon = hci_connect_bis(hdev, &iso_pi(sk)->dst,
le_addr_type(iso_pi(sk)->dst_type),
- &iso_pi(sk)->qos, iso_pi(sk)->base_len,
- iso_pi(sk)->base);
+ iso_pi(sk)->bc_sid, &iso_pi(sk)->qos,
+ iso_pi(sk)->base_len, iso_pi(sk)->base);
if (IS_ERR(hcon)) {
err = PTR_ERR(hcon);
goto unlock;
}
+
+ /* Update SID if it was not set */
+ if (iso_pi(sk)->bc_sid == HCI_SID_INVALID)
+ iso_pi(sk)->bc_sid = hcon->sid;
}
conn = iso_conn_add(hcon);
--
2.49.0
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